Table of Contents
Advertisement
DIP Switch S2 Settings – Cooling Airflow
DIP Switch S2 is used to adjust the cooling speed and profile.
Refer to Fig. 4 on page 7 for location of DIP switch S2.
The default factory settings (all OFF) are shown in Fig. 6 and
indicated in Bold in Table 6.
To change any setting, first disconnect the power, then set
SW8 through SW13 according to Table 6.
.
DIP SWITCH S2
Fig. 6. DIP Switch S2 - shown with factory default
settings; all OFF.
High Cool Speed (circulator)
Medium-low Cool Speed (circulator)
Medium-high Cool Speed (circulator)
Low Cool Speed (circulator)
Normal CFM - Base tap
Decrease Cool speed CFM by 10%
Increase Cool speed CFM 10%
ECM Test Mode (motor slew rates disabled)
Cooling Profile -
On: 30 seconds at 50%, 7.5 minutes at 82%, then run at 100%
Off: 30 second Off Delay at 50%
Cooling Profile -
On: No On Delay (run at 100%)
Off: 60 second Off Delay at 100%
Cooling Profile -
On: 7.5 minutes at 82%, then run at 100%
Off: no Off Delay
Cooling Profile - no On or Off Delays
S9240F1004 MODULATING HOT SURFACE IGNITION INTEGRATED FURNACE CONTROL
COOL SPEED
COOL SPEED ADJUSTMENT
COOLING PROFILE
M28152
Table 6. DIP Switch S2 Settings – Cooling Airflow.
Description
SW8-9: COOLING FAN SPEED
The fan speed during cooling is factory-set to High.
SW10-11: COOLING FAN SPEED ADJUSTMENT (CFM)
The fan CFM during cooling is factory-set to normal (Base
Tap).
SW12-13: COOLING PROFILE
The fan profile during cooling is factory-set to 30 seconds at
50%, 7.5 minutes at 82%, run at 100%, and with a 30 second
Off delay at 50%. Fig. 7 illustrates the factory-set cooling
profile. The fan speed ramps up and down during speed
changes.
.
100%
F
A
82%
N
S
P
50%
E
E
1
D
30
FAN SPEED AS A PERCENT OF MAXIMUM.
1
Fig. 7. Fan cooling speed ramp up and ramp down profile
(factory default shown).
SW8
SW9
OFF
OFF
OFF
ON
ON
OFF
ON
ON
9
450
TIME (SECONDS)
Individual Switches
SW10
SW11
SW12
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
OFF
ON
ON
30
M28161
SW13
OFF
ON
OFF
ON
69-2088—01
Advertisement
Table of Contents
